CN211706009U

CN211706009U - Desanding equipment

Info

Publication number: CN211706009U
Application number: CN202020034917.4U
Authority: CN
Inventors: 朱永伟; 朱明源; 孙小蕾; 李方成; 李雨欣; 王爱民
Original assignee: Zhucheng Xinridong Machinery Factory
Current assignee: Zhucheng Xinridong Machinery Factory
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-10-20
Anticipated expiration: 2030-01-08

Abstract

The utility model provides a desanding device, through entering the upper cone along the tangential direction with thick liquids under pressure, carry out the recoil washing under high-pressure water conservancy, make thick liquids come up to the upper cone, sand sinks to the sand setting jar made by the steel sheet through cone valve down, simple structure, convenient operation, through the back flush of first inlet tube, second inlet tube and third inlet tube, the control is advanced the mouth and can be obtained the different pressure of grout outlet, thereby control separation effect, can control the thick liquids to run off to zero, sand in the sand setting jar is discharged into the water tank through the scum outlet, helical blade is equipped with the sand collection groove along the direction of rotation, the sand collection groove sets up the upper surface at helical blade, be equipped with a plurality of wash ports in the sand collection groove, can accelerate the separation of water in the sand in helical blade motion process, make water discharge from the wash port, can correspondingly reduce the length of sand conveying pipe and helical blade, the transportation time of the sand is reduced, thereby improving efficiency.

Description

Desanding equipment

Technical Field

The utility model relates to an environmental protection equipment technical field.

In particular to a desanding device.

Background

The sand-water separator is one of the common process equipments in the process flow of water supply and drainage treatment. The method is mainly used for removing granular inorganic matters in a water source so as to ensure the normal operation of equipment in the subsequent process of water treatment. The mixed liquid flows into the sand basin, the separated sand particles reach a sand-water separator, and the sand-water separator carries out sand-water separation on the sand-water mixed liquid discharged from the sand basin. It is widely used in large, medium and small water treatment projects in cities and pre-pretreatment processes in hotels, factories, mines, enterprises and public institutions in cities. The prior sand removing equipment is easy to cause insufficiency during sand removing, and the later sand removing efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the weak point of above-mentioned conventional art, to prior art not enough, provide a simple structure, convenient operation, unblock sand discharging port, but the sand removal equipment that purification efficiency is high fully.

The purpose of the utility model is achieved through the following technical measures: the utility model provides a desanding equipment which characterized in that: the sand-conveying pipe comprises a frame, be equipped with cone, lower cone, grit chamber, water tank and defeated sand pipe in the frame, last cone, lower cone, grit chamber and water tank communicate the setting from the top down in proper order, upward be equipped with into thick liquid mouth and go out the thick liquid mouth on the cone, be equipped with the row's cinder notch on the grit chamber, arrange the cinder notch with the water tank intercommunication, the one end setting of defeated sand pipe is in the water tank bottom, and the other end is equipped with power device, defeated sand intraduct is equipped with helical blade, helical blade and power device transmission are connected, the junction intercommunication of cone and grit chamber has first inlet tube down.

As an improvement of the technical scheme: the spiral blade is provided with a sand collecting groove along the rotating direction, the sand collecting groove is arranged on the upper surface of the spiral blade, and a plurality of drain holes are formed in the sand collecting groove.

As an improvement of the technical scheme: the sand collecting groove is arranged along the whole helical blade, the drain holes are through holes in the thickness direction of the helical blade, the drain holes are uniformly distributed on the sand collecting groove, and the diameter of one end, located in the sand collecting groove, of each drain hole is smaller than that of the other end of each drain hole.

As an improvement of the technical scheme: the water tank upper portion is equipped with inlet and overflow mouth, the overflow mouth sets up in the inlet below, the overflow mouth is equipped with the filter pulp, the inlet with sand discharge opening intercommunication, the overflow mouth intercommunication has the water purification jar.

As an improvement of the technical scheme: the lower cone is connected with the sand setting tank through a transparent pipe, a sixth control valve is arranged on the lower portion of the transparent pipe, the portion, located above the sixth control valve, of the transparent pipe is communicated with the first water inlet pipe, and the other end of the first water inlet pipe is communicated with the water purifying tank.

As an improvement of the technical scheme: the part of the transparent pipe below the sixth control valve is communicated with the first water inlet pipe through a second water inlet pipe, the grit chamber is communicated with the first water inlet pipe through a third water inlet pipe, and a seventh control valve is arranged on the slag discharge port.

As an improvement of the technical scheme: the part of the first water inlet pipe between the second water inlet pipe and the transparent pipe is provided with a first control valve, and the part of the first water inlet pipe between the second water inlet pipe and the third water inlet pipe is provided with a second control valve.

As an improvement of the technical scheme: and a third control valve is arranged on the second water inlet pipe, a fourth control valve is arranged on the third water inlet pipe, a fifth control valve is arranged on the upper part of the sand setting tank, and the fifth control valve controls the communication between the sand setting tank and the outside.

As an improvement of the technical scheme: the grout inlet is arranged on the upper portion of the upper cone, the grout inlet is arranged along the tangential direction of the upper cone, the grout inlet is provided with a first pressure detection valve, the grout outlet is arranged on the uppermost portion of the upper cone, the grout outlet is arranged towards the upper portion, and the grout outlet is provided with a second pressure detection valve.

Owing to adopted above-mentioned technical scheme, compare with prior art, the utility model has the advantages that: the utility model provides a desanding device, through getting into the upper cone with thick liquids along tangential direction under pressure, utilize exit pressure difference to act as power, make thick liquids do the spiral motion along the cone and produce centrifugal force, make the heavy impurity in the thick liquids under the effect of centrifugal force, be thrown to upper cone internal surface, and lean on gravity natural motion downwards, the good thick liquids are discharged from the upper outlet in the middle, heavy impurity and some thick liquids sink to the lower cone, carry out the recoil washing under high-pressure water power, make thick liquids come up to the upper cone, sand sinks to in the grit jar of being made by the steel sheet through the lower cone valve, moreover, the steam generator is simple in structure, convenient operation, through the backwash of first inlet tube, second inlet tube and third inlet tube, the control is advanced the thick liquids and can be obtained the different pressure of grout outlet, thereby control the separation effect, can control the thick liquids to run off for zero, the sand in the grit jar discharges into the water tank through the cinder notch, the helical blade is provided with a sand collecting groove along the rotating direction, the sand collecting groove is arranged on the upper surface of the helical blade, a plurality of drain holes are arranged in the sand collecting groove, water separation in sand can be accelerated in the motion process of the helical blade, water is discharged from the drain holes, the length of a sand conveying pipe and the length of the helical blade can be correspondingly reduced, the conveying time of sand grains is shortened, and therefore the efficiency is improved.

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Drawings

FIG. 1 is a schematic view of the whole structure of a sand removing device of the present invention.

Figure 2 is the utility model discloses a water tank and defeated sand pipe structure sketch map of desanding equipment.

Figure 3 is the utility model discloses a helical blade structure sketch map of desanding equipment.

Figure 4 is the utility model discloses a sand trap structure sketch map of desanding equipment.

Figure 5 is the upper cone, the lower cone and the sand setting tank of the sand removing device of the utility model.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example (b): as shown in the attached figures 1-5, a desanding device is characterized in that: including frame 1, be equipped with cone 2, lower cone 3, grit chamber 4, water tank 5 and defeated sand pipe 6 in frame 1, go up cone 2, lower cone 3, grit chamber 4 and water tank 5 from the top down and communicate the setting in proper order, upward be equipped with into thick liquid mouth 7 and grout outlet 8 on the cone 2, be equipped with row cinder notch 9 on the grit chamber 4, arrange cinder notch 9 with water tank 5 intercommunication, the one end setting of defeated sand pipe 6 is in water tank 5 bottom, and the other end is equipped with power device, defeated sand pipe 6 is inside to be equipped with helical blade 10, helical blade 10 and power device transmission are connected, the junction intercommunication of lower cone 3 and grit chamber 4 has first inlet tube 11.

The helical blade 10 is provided with a sand collection groove 12 along the rotation direction, the sand collection groove 12 is arranged on the upper surface of the helical blade 10, and a plurality of drain holes 13 are arranged in the sand collection groove 12.

In this embodiment, the power device is a motor 14, the motor 14 is connected to a speed reducer, and the shaft-mounted speed reducer is directly connected to the helical blade 10. The supporting bearing is arranged at the top of the sand conveying pipe 6, so that reliable sealing and good lubricating conditions are achieved, and the bearing device can be waterproof and dustproof and is convenient to lubricate and maintain.

As shown in fig. 2 to 4, the sand trap 12 is provided along the entire spiral blade 10. The drain holes 13 are through holes along the thickness direction of the helical blade 10, and the drain holes 13 are uniformly distributed on the sand collecting groove 12. The diameter of one end of the drain hole 13 in the sand collecting groove 12 is smaller than that of the other end, so that the drain hole 13 can be effectively prevented from being blocked, and the whole working efficiency is ensured.

The inclination angle of the sand conveying pipe 6 is 25 degrees. The upper part of the sand conveying pipe 6 is provided with a sand outlet 15, and the sand outlet 15 is arranged downwards.

The upper part of the water tank 5 is provided with a liquid inlet 16 and an overflow port 17, the overflow port 17 is arranged below the liquid inlet 16, and the liquid inlet 16 is communicated with the slag discharge port. The overflow port 17 is provided with filter cotton, so that the quality of water flowing out of the overflow port 17 is ensured.

The power device of the helical blade 10 adopts a gear reduction motor 14 with international known brand, and the service coefficient is not less than 1.6. The gear is made of alloy steel, and is subjected to carburizing treatment, wherein the tooth surface hardness is not lower than HRC 58-62. The motor 14 is suitable for outdoor use, protection grade IP65, voltage grades are three-phase, 380v and 50Hz, F grade insulation, and rated power of the motor 14 is higher than maximum practical power consumption by more than 10%.

The spiral diameter of the spiral blade 10 is phi 280mm, and a shaftless spiral is adopted, so that smooth material conveying and no blockage can be ensured. Defeated sand pipe 6 is U type section, and installation angle 25, except that the sand inlet in water tank 5 is uncovered, all the other parts are with flat lid seal structure, for removable mode, and sand outlet 15 is established to the upper end, and sand outlet 15 sets up down, the sand of being convenient for, about 1.75m above ground. The sand outlet 15 of the spiral conveying groove is 300mm higher than the top of the separator. The sand conveying pipe 6 and the water tank 5 are of an integral structure, and have enough strength and rigidity and no leakage.

As shown in fig. 5, the lower cone 3 and the sand setting tank 4 are connected through a transparent pipe 18, a sixth control valve 24 is arranged at the lower part of the transparent pipe 18, the part of the transparent pipe 18 above the sixth control valve 24 is communicated with the first water inlet pipe 11, and the other end of the first water inlet pipe 11 is communicated with the clean water tank. In the embodiment, the inner parts of the upper cone body 2 and the lower cone body 3 are frustum-shaped with a large upper part and a small lower part, the upper cone body 2 and the lower cone body 3 are formed by adopting high-strength cast iron through quenching and tempering and then finish machining or are made of wear-resistant ceramics, the wall thickness reaches 5-10cm, and the wear-resistant and corrosion-resistant structure is wear-resistant and long in service life.

The lower cone 3 and the sand setting tank 4 are connected through a transparent pipe 18, a sixth control valve 24 is arranged at the lower part of the transparent pipe 18, and the part of the transparent pipe 18 above the sixth control valve 24 is communicated with the first water inlet pipe 11. The transparent tube 18 facilitates viewing of the interior.

The portion of the transparent tube 18 located below the sixth control valve 24 is communicated with the first inlet tube 11 through a second inlet tube 26. The sixth control valve 24 is a pneumatic gate valve, the model number of which is DN150, and the working mode is electric.

The sand setting tank 4 is communicated with the first water inlet pipe 11 through a third water inlet pipe 27, and a seventh control valve 25 is arranged on the slag discharge port 9. The seventh control valve 25 is a pneumatic gate valve, the model is DN300, and the working mode is electric.

The portion of the first inlet conduit 11 between the second inlet conduit 26 and the transparent tube 18 is provided with a first control valve 19, and the portion of the first inlet conduit 11 between the second inlet conduit 26 and the third inlet conduit 27 is provided with a second control valve 20. The first control valve 19 is a cleaning water control valve, the model number is DN15, and the working mode is manual normal open. The second control valve 20 is a backwashing water control valve, the model is DN25, and the working mode is electric normally open.

The second water inlet pipe 26 is provided with a third control valve 21, and the third water inlet pipe 27 is provided with a fourth control valve 22. The third control valve 21 is a washing water control valve, model number DN15, and its operation mode is electric. The fourth control valve 22 is a washing water control valve, model number DN25, and its operation mode is electric.

And a fifth control valve 23 is arranged at the upper part of the sand setting tank 4, and the fifth control valve 23 controls the communication between the sand setting tank 44 and the outside. The fifth control valve 23 is an exhaust hole control valve, controls the sand settling tank 4 to exhaust, and has the model number DN25 and the working mode of electric operation.

The first control valve 19 and the second control valve 20 are normally open. When the interior of the grit tank 4 is flushed, the sixth control valve 24 is closed, the fourth control valve 22, the fifth control valve 23 and the seventh control valve 25 are opened, the seventh control valve 25 is closed twenty seconds later, the flushing of the grit tank 4 is completed, the third control valve 21, the fourth control valve 22 and the fifth control valve 23 are closed thirty seconds later, the sixth control valve 24 is opened at the same time, and the inside slurry and sand are backwashed, so that the sand is completely removed.

The slurry inlet 7 is arranged at the upper part of the upper cone 2, the slurry inlet 7 is arranged along the tangential direction of the upper cone 2, and the slurry inlet 7 is provided with a first pressure detection valve 28. The grout outlet 8 is arranged on the uppermost part of the upper cone 2, the grout outlet 8 is arranged towards the upper part, and the grout outlet 8 is provided with a second pressure detection valve 29. Through the data that first pressure detection valve 28 and second pressure detection valve 29 show, can freely adjust the pressure differential of business turn over thick liquid, reach the separation effect and the productivity that the design required to adjust according to the production needs, control separation effect.

Before the slurry is put into operation, the sixth control valve 24 is closed, the fourth control valve 22, the fifth control valve 23 and the seventh control valve 25 are started, after the interior is filled with water, the seventh control valve 25, the third control valve 21, the fourth control valve 22 and the fifth control valve 23 are closed, and the sixth control valve 24 is opened, so that the slurry can be fed. When the slurry supply is stable and the pressure difference meets the technological requirements, the flushing water pressure is adjusted to be greater than the slurry inlet pressure by 0.02Pa, and the normal operation can be realized after the pressure of each part is stable. The pressure difference between the inlet and the outlet is a determining factor influencing the yield and the sand removing effect. Since the slurry is forced through the desander and the centrifugal force of the rotating motion is also due to the pressure, the slurry inlet pressure must meet the specified requirements in use to achieve the best separation effect of the desander. Generally, the pulp inlet pressure is 0.2-0.35 MPa, and the pulp outlet pressure is 0.1-0.5 MPa.

The method comprises the steps of enabling slurry to enter an upper cone 2 along the tangential direction under pressure, enabling the slurry to spirally move along the cone to generate centrifugal force by using inlet-outlet pressure difference as power, enabling heavy impurities in the slurry to be thrown to the inner surface of the upper cone 2 under the action of the centrifugal force and naturally move downwards by means of gravity, discharging good slurry from a middle slurry outlet, enabling the heavy impurities and part of the slurry to sink to a lower cone 3, carrying out back flushing washing under high-pressure water power, enabling the slurry to float to the upper cone 2, and enabling the heavy impurities to sink to a sand basin 4 made of a steel plate through the lower cone 3. The sand discharge can be carried out during the operation of the sand remover, and the sand sedimentation condition in the tank can be observed from the transparent pipe 18, and if the sand discharge is needed, the sand discharge can be carried out according to the following procedures: the valve is closed, and after the water supply valve is opened, the slag discharge port 9 can be opened to discharge sand grains. Cleaning the joint surface of the sand setting tank 4 and the slag discharging port 9 by using clear water, and then closing the slag discharging port 9. After the sand setting tank 4 is filled with water, the valve is opened, and the process must be continuously operated in sequence. And adjusting the sand discharging times according to the impurity content in the slurry. During sand discharge, sand-water mixture is input into a water tank 5 from a sand setting tank 4 through a liquid inlet 16 at the top of the separator, sand-water separation is performed, sand grains with high gravity in mixed liquid are deposited at the bottom of the tank, the sand grains are lifted out along the inclined tank bottom under the pushing of a spiral, the sand is conveyed to a top sand outlet 15 along 25 degrees by a rotary spiral blade 10, a sand collecting tank 12 is arranged on the spiral blade 10 along the rotating direction, the sand collecting tank 12 is arranged on the upper surface of the spiral blade 10, a plurality of water discharging holes 13 are formed in the sand collecting tank 12, water separation in the sand can be accelerated in the moving process of the spiral blade 10, water is discharged from the water discharging holes 13, the lengths of a sand conveying pipe 6 and the spiral blade 10 can be correspondingly reduced, the conveying time of the sand grains is shortened, and therefore the efficiency is improved. After sand grains are fully dehydrated, the sand grains are discharged to a sand containing barrel through a sand outlet 15, water separated from sand water is discharged into a water purifying tank 30 from an overflow port 17, and the water in the water purifying tank 30 enters the sand settling tank 4 through a first water inlet pipe 11, a second water inlet pipe 26 and a third water inlet pipe 27 to be back washed and cleaned, and the water is circulated in sequence.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a desanding equipment which characterized in that: the sand conveying device comprises a frame, be equipped with cone, lower cone, sediment jar, water tank and defeated sand pipe in the frame, go up cone, lower cone, sediment jar and water tank from the top down and communicate the setting in proper order, upward be equipped with into thick liquid mouth and go out the thick liquid mouth on the cone, be equipped with the row's cinder notch on the sediment jar, arrange the cinder notch with the water tank intercommunication, the one end setting of defeated sand pipe is in the water tank bottom, and the other end is equipped with power device, defeated sand intraduct is equipped with helical blade, helical blade and power device transmission are connected, the junction intercommunication of cone and sediment jar has first inlet tube down.

2. An apparatus for removing grit as in claim 1, wherein: the spiral blade is provided with a sand collecting groove along the rotating direction, the sand collecting groove is arranged on the upper surface of the spiral blade, and a plurality of drain holes are formed in the sand collecting groove.

3. An apparatus for removing grit as in claim 2, wherein: the sand collecting groove is arranged along the whole helical blade, the drain holes are through holes in the thickness direction of the helical blade, the drain holes are uniformly distributed on the sand collecting groove, and the diameter of one end, located in the sand collecting groove, of each drain hole is smaller than that of the other end of each drain hole.

4. A desanding apparatus as claimed in claim 3, in which: the water tank upper portion is equipped with inlet and overflow mouth, the overflow mouth sets up in the inlet below, the overflow mouth is equipped with the filter pulp, the inlet with the scum outlet intercommunication, the overflow mouth intercommunication has water purification jar.

5. An apparatus for removing grit as in claim 4, wherein: the lower cone is connected with the sediment tank through a transparent pipe, a sixth control valve is arranged on the lower portion of the transparent pipe, the portion, located above the sixth control valve, of the transparent pipe is communicated with the first water inlet pipe, and the other end of the first water inlet pipe is communicated with the water purification tank.

6. An apparatus for removing grit as in claim 5, wherein: the part of the transparent pipe below the sixth control valve is communicated with the first water inlet pipe through a second water inlet pipe, the slag settling tank is communicated with the first water inlet pipe through a third water inlet pipe, and a seventh control valve is arranged on the slag discharging port.

7. An apparatus for removing grit as in claim 6, wherein: the part of the first water inlet pipe between the second water inlet pipe and the transparent pipe is provided with a first control valve, and the part of the first water inlet pipe between the second water inlet pipe and the third water inlet pipe is provided with a second control valve.

8. An apparatus for removing grit as in claim 7, wherein: the slag settling tank is characterized in that a third control valve is arranged on the second water inlet pipe, a fourth control valve is arranged on the third water inlet pipe, a fifth control valve is arranged on the upper portion of the slag settling tank, and the fifth control valve controls the communication between the slag settling tank and the outside.

9. An apparatus for removing grit as in any one of claims 1 to 8, wherein: the grout inlet is arranged on the upper portion of the upper cone, the grout inlet is arranged along the tangential direction of the upper cone, the grout inlet is provided with a first pressure detection valve, the grout outlet is arranged on the uppermost portion of the upper cone, the grout outlet is arranged towards the upper portion, and the grout outlet is provided with a second pressure detection valve.